// const mysql = require("mysql");

// const connection = mysql.createConnection({
//     host:"localhost",
//     user:"root",
//     password:"123456",
//     database:"pet"
// })

// connection.connect();

// connection.query('select * from comment',(err,results,fields)=>{
//     if(err) throw err;
//     console.log(results);
// })

// connection.end();